SOLUTION: The distance between two stations A and B is 240km. Two trains leaved both stations at the same time and went towards each other: The A train, with 45km per hour and B train, with
Algebra.Com
Question 802869: The distance between two stations A and B is 240km. Two trains leaved both stations at the same time and went towards each other: The A train, with 45km per hour and B train, with the speed of 35km per hour. And this is where it gets weird.. At the same time, from the station A, departed a little bird with the speed of 50km per hour, towards the B train. When the bird reached the B train, it flew back, towards the A train, reached the A train and flew back, towards the B train,etc, etc.
Question: How many kilometers the bird flew in total, until the trains finally met each other?
Answer by mananth(16946) (Show Source): You can put this solution on YOUR website!
The distance between two stations A and B is 240km. Two trains leaved both stations at the same time and went towards each other: The A train, with 45km per hour and B train, with the speed of 35km per hour. And this is where it gets weird.. At the same time, from the station A, departed a little bird with the speed of 50km per hour, towards the B train. When the bird reached the B train, it flew back, towards the A train, reached the A train and flew back, towards the B train,etc, etc.
Question: How many kilometers the bird flew in total, until the trains finally met each other?
Looks weird but it is simple if you understand the logic
The two trains move towards each other. They meet.
time they meet = d/r
r=35+45 =80 km/h
distance =240 km
time = 240/80 = 3 hours
Time the trains take to meet is the time the bird is flying
rate = 50 km/h
d= rt
=50*3=150 km
RELATED QUESTIONS
Two trains start at the same time from two stations and proceed towards each other with... (answered by josmiceli)
Two trains start at the same time from two stations and proceed towards each other with... (answered by josmiceli)
The distance between delhi and meerut is 75 km.Two trains at a speed of 100km/hr &... (answered by mananth,MathTherapy)
The distance betwčen delhi and meerut is 75 km. Two trains at a speed of 100km/h and... (answered by richard1234)
Two trains leave their respective stations at the same time travelling towards each... (answered by josmiceli)
The distance between 2 stations a and b is 200 km .2 trains start at the same time from... (answered by josgarithmetic)
The distance between two stations delhi and amritsar is 450 km. A train starts at 4pm frm (answered by ewatrrr)
Two trains start from stations A and B spaced 50kms apart at the same time and speed. As... (answered by Alan3354)
The distance between two stations A & B is 220km.A train leaves A towards B at an avg... (answered by josgarithmetic)